Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 100 ppm 200 ppm 150 ppm 50 ppm 100 ppm 200 ppm 150 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter Less than 0.01 mm Less than 0.1 mm Greater than 0.1 mm Less than 0.05 mm Less than 0.01 mm Less than 0.1 mm Greater than 0.1 mm Less than 0.05 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering No treatment of the sewage is given if dilution factor is More than 500 Less than 150 Between 150 to 200 Between 200 to 300 More than 500 Less than 150 Between 150 to 200 Between 200 to 300 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of sewage is determined with the help of Imhoff Cone None of these Turbid meter Potentiometer Imhoff Cone None of these Turbid meter Potentiometer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Facultative bacteria survive in Both cases A and B The absence of oxygen Neither A nor B The presence of oxygen Both cases A and B The absence of oxygen Neither A nor B The presence of oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of minimum hourly flow to the average flow of sewage is 43834 43833 43894 43832 43834 43833 43894 43832 ANSWER DOWNLOAD EXAMIANS APP
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